Shingles is an acute, painful condition where erythematous vesicles erupt in one or more parts
of the body. Infection is often followed by persistent debilitating pain known as postherpetic
neuralgia (PHN), which is the most common complication. Frail older people are particularly
vulnerable. Drs Peter Passmore and Enda Kerr review the epidemiology, complications,
management and prevention options of the condition.